Axis 291 1U Installation Manual page 10

AXIS 291 1U Video Server Rack
2
UK
3
US, Canada, Japan
4
Australia
5
Switzerland
6
Denmark
7
South Korea
Pin Assignments for I/O Connector - AXIS P72 Blades
Pin Function
1
+12V out, 100mA
2
GND
3
Configurable I/O 1
4
Configurable I/O 2
5
Configurable I/O 3
6
Configurable I/O 4
7–10
11
RS485A
12
RS485B
Pin Assignments for I/O Connector - AXIS Q7414 Blade
Pin Function
1
+12 V out, 100mA
2
GND
Description
Digital input - Connect to
GND to activate, or leave
floating (or unconnected) to
deactivate.
Digital output - Uses an
opendrain NFET transistor with
the source connected to GND.
If used with an external relay,
a diode must be connected
in parallel with the load, for
protection against voltage
transients.
Not used
A half-duplex RS485 interface for controlling auxiliary
equipment e.g. PTZ devices.
Description
10
Min input = 0V DC
Max input = + 40V DC
Max load = 100mA
Max voltage applied = + 40V
DC